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NBDHE Exam Version 2 / National Board Dental
Hygiene Examination Newest 2026/2027 Complete
Questions And Correct Detailed Answer S (Verified
Answers) |Brand New Version!!
The ASA (anterior superior alveolar) nerve block anesthetizes:
A. Maxillary anterior teeth
B. Mandibular anterior teeth
C. Maxillary posterior teeth
D. Mandibular molars
ANSWER : A
Which is the primary objective of motivational interviewing in dental
hygiene?
A. Provide education only
B. Encourage patient-driven behavior change
C. Enforce oral hygiene instructions
D. Record compliance levels
ANSWER : B
What is the MOST common malignant oral neoplasm?
A. Basal cell carcinoma
B. Squamous cell carcinoma
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C. Adenoid cystic carcinoma
D. Kaposi’s sarcoma
ANSWER : B
Which type of hypersensitivity reaction is responsible for anaphylaxis?
A. Type I (IgE-mediated)
B. Type II (cytotoxic)
C. Type III (immune complex)
D. Type IV (delayed)
ANSWER : A
The area of the tooth where cementum meets enamel is known as:
A. Apical foramen
B. Dentinoenamel junction
C. Cementoenamel junction
D. Pulp chamber
ANSWER : C
The primary mineral found in supragingival calculus is:
A. Magnesium phosphate
B. Calcium carbonate
C. Hydroxyapatite
D. Brushite ANSWER : D
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The MOST effective method of fluoride delivery for children at high
caries risk is:
A. Water fluoridation
B. Daily fluoride toothpaste
C. Professional fluoride varnish
D. Chlorhexidine rinse
ANSWER : C
Which lesion is premalignant and has the highest risk of transformation?
A. Leukoplakia
B. Erythroplakia
C. Fibroma
D. Papilloma
ANSWER : B
Which gland produces the majority of unstimulated saliva?
A. Parotid
B. Sublingual
C. Submandibular
D. Minor glands
ANSWER : C
Which periodontal pocket type involves the base of the pocket being
apical to the alveolar crest?
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A. Gingival pocket
B. Suprabony pocket
C. Intrabony pocket
D. Pseudopocket
ANSWER : C
Which type of hepatitis is transmitted primarily by blood and body
fluids?
A. Hepatitis A
B. Hepatitis B
C. Hepatitis E
D. Hepatitis A and E
ANSWER : B
Which anesthetic is safest for pregnant patients?
A. Mepivacaine
B. Lidocaine (Category B)
C. Prilocaine
D. Bupivacaine
ANSWER : B
The most common site of calculus formation is:
A. Lingual surfaces of mandibular anterior teeth
B. Buccal surfaces of maxillary molars
NBDHE Exam Version 2 / National Board Dental
Hygiene Examination Newest 2026/2027 Complete
Questions And Correct Detailed Answer S (Verified
Answers) |Brand New Version!!
The ASA (anterior superior alveolar) nerve block anesthetizes:
A. Maxillary anterior teeth
B. Mandibular anterior teeth
C. Maxillary posterior teeth
D. Mandibular molars
ANSWER : A
Which is the primary objective of motivational interviewing in dental
hygiene?
A. Provide education only
B. Encourage patient-driven behavior change
C. Enforce oral hygiene instructions
D. Record compliance levels
ANSWER : B
What is the MOST common malignant oral neoplasm?
A. Basal cell carcinoma
B. Squamous cell carcinoma
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C. Adenoid cystic carcinoma
D. Kaposi’s sarcoma
ANSWER : B
Which type of hypersensitivity reaction is responsible for anaphylaxis?
A. Type I (IgE-mediated)
B. Type II (cytotoxic)
C. Type III (immune complex)
D. Type IV (delayed)
ANSWER : A
The area of the tooth where cementum meets enamel is known as:
A. Apical foramen
B. Dentinoenamel junction
C. Cementoenamel junction
D. Pulp chamber
ANSWER : C
The primary mineral found in supragingival calculus is:
A. Magnesium phosphate
B. Calcium carbonate
C. Hydroxyapatite
D. Brushite ANSWER : D
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The MOST effective method of fluoride delivery for children at high
caries risk is:
A. Water fluoridation
B. Daily fluoride toothpaste
C. Professional fluoride varnish
D. Chlorhexidine rinse
ANSWER : C
Which lesion is premalignant and has the highest risk of transformation?
A. Leukoplakia
B. Erythroplakia
C. Fibroma
D. Papilloma
ANSWER : B
Which gland produces the majority of unstimulated saliva?
A. Parotid
B. Sublingual
C. Submandibular
D. Minor glands
ANSWER : C
Which periodontal pocket type involves the base of the pocket being
apical to the alveolar crest?
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A. Gingival pocket
B. Suprabony pocket
C. Intrabony pocket
D. Pseudopocket
ANSWER : C
Which type of hepatitis is transmitted primarily by blood and body
fluids?
A. Hepatitis A
B. Hepatitis B
C. Hepatitis E
D. Hepatitis A and E
ANSWER : B
Which anesthetic is safest for pregnant patients?
A. Mepivacaine
B. Lidocaine (Category B)
C. Prilocaine
D. Bupivacaine
ANSWER : B
The most common site of calculus formation is:
A. Lingual surfaces of mandibular anterior teeth
B. Buccal surfaces of maxillary molars
